/Engine/Source/Runtime/Core/Public/Math/Vector.h
Interpolate from a vector to the direction of another vector along a spherical path.
Vector after interpolating between Vector and Direction along a spherical path. The magnitude will remain the length of the starting vector.
static [TVector](API\Runtime\Core\Math\TVector)< T > SlerpVectorToDirection ( [TVector](API\Runtime\Core\Math\TVector)< T > & V, [TVector](API\Runtime\Core\Math\TVector)< T > & Direction, T Alpha )